Microchip Technology ATMEGA644A-AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.25 | $5.25 |
| 15+ | $5.09 | $76.35 |
| 25+ | $4.98 | $124.50 |
| 50+ | $4.70 | $235.00 |
| 100+ | $4.15 | $415.00 |
| N+ | $0.83 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-TQFP (10x10) |
| Package / Case | 44-TQFP |
| ROHS |  |
The Microchip ATMEGA644A-AU is an 8-bit AVR microcontroller running at 20 MHz. It provides 64 KB flash and 4 KB SRAM, operating from 1.8V to 5.5V. Housed in a 44-TQFP package, it includes PWM, WDT, and brown-out detection for general-purpose embedded applications.
- Wide voltage range: 1.8V to 5.5V supports both battery and regulated supplies.
- Large flash: 64 KB allows complex firmware without external memory.
- Proven AVR core: Simple instruction set reduces development time.
- Robust peripherals: PWM and WDT enhance control and reliability.
Home Automation Hubs
The 20MHz AVR core and 64KB flash handle Zigbee or Z-Wave protocol stacks in smart home gateways.
Industrial Data Loggers
Its 5.5V operation and WDT ensure reliable logging in factory environments with noisy power.
Agricultural Controllers
The 44-TQFP package and PWM outputs drive irrigation valves and greenhouse actuators.
Consumer Appliances
With 1.8V minimum supply, it supports battery-operated kitchen scales and thermometers.
Security Systems
Multiple timers and interrupts enable motion sensor processing and alarm control panels.
Educational Robotics
Its simple AVR architecture and ample I/O make it ideal for teaching embedded control.
- Q: What is the core architecture?
- A: It uses an 8-bit AVR core running at up to 20 MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, offering flexibility for various power rails.
- Q: How much flash and RAM does it have?
- A: It includes 64 KB flash and 4 KB SRAM.
- Q: What is the package type?
- A: It is available in a 44-TQFP package.
- Q: What is the temperature range?
- A: It is rated for -40°C to 85°C.
ATMEGA644A-AU.pdf
- Q: What is the core architecture?
- A: It uses an 8-bit AVR core running at up to 20 MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, offering flexibility for various power rails.
- Q: How much flash and RAM does it have?
- A: It includes 64 KB flash and 4 KB SRAM.
- Q: What is the package type?
- A: It is available in a 44-TQFP package.
- Q: What is the temperature range?
- A: It is rated for -40°C to 85°C.
